KT Corporation (formerly Korea Telecom) is the leading South Korean integrated telecommunication service provider. Megapass is a broadband telecommunication service offered by KT that features Interactive TV, TV-VOD (Video on Demand) and includes movies and popular television programs, remote domestic video monitoring, SMS messaging and local service ‘directory’ information.
KT Corporation wanted to find a smart, sector-specific solution that would help them provide viewers with a semantic search mechanism allowing them to locate and access more IPTV content and to match it with their preferences and needs.
Since the launch of the service in 2007, the existing search mechanism allowed viewers to discover less than 10% of all available content (more than 70,000 VOD contents). KT needed the service to be able to:
KT implemented a semantic search system based on Ontotext’s technology with the following features:
The following is the KT conceptual diagram of the Interactive TV service:
KT provides semantic VOD search service for IPTV and various smart mobile devices using OWLIM (now GraphDB) as semantic repository. We found that BigOWLIM is suitable for our service, as it has shown good performance for its price compared with other products in the actual simulation tests. Best of all, OWLIM could be easily tested, installed and used thanks to open library, detailed guidelines, and lots of samples etc. By and large, our experience is that OWLIM is a very powerful and reliable high-performance semantic repository.”
Joo Won Sung, Senior Researcher, Central R&D Laboratory, KT.
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